After a dip in the early morning, there is a rebound signal on the four-hour line at noon.

Technical bottom-fishing, always around 30-50-80, performing profit-taking operations based on the law.
Contracts require technical operations to avoid the problems of holding on stubbornly and passively.
Control greed, manage positions, build positions with light holdings and roll over.
In the case of a special market situation, short positions should immediately stop loss, and during a strong Rebound, move the stop loss position (to break even) and let the take profit position follow.
Do not hold positions, do not be greedy!!!
Let's encourage each other.